Apache Echarts Two Date Data Options Problem - vue.js

I am using Apache Ecarts stacked line chart. This chart is also available, there is a type date option. For example, like 'Mon,Tue,Wed..' I want to give the month to the user as a second option in the same table. When you click a button, months should be listed instead of days. I made several additions to the sample code below, but it did not see any of the tables.
How can I solve this?
import * as echarts from 'echarts';
var chartDom = document.getElementById('main');
var myChart = echarts.init(chartDom);
var option;
option = {
title: {
text: 'Stacked Line'
},
tooltip: {
trigger: 'axis'
},
legend: {
data: ['Email', 'Union Ads', 'Video Ads', 'Direct', 'Search Engine']
},
grid: {
left: '3%',
right: '4%',
bottom: '3%',
containLabel: true
},
toolbox: {
feature: {
saveAsImage: {}
}
},
xAxis: {
type: 'category',
boundaryGap: false,
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
},
yAxis: {
type: 'value'
},
series: [
{
name: 'Email',
type: 'line',
stack: 'Total',
data: [120, 132, 101, 134, 90, 230, 210]
},
{
name: 'Union Ads',
type: 'line',
stack: 'Total',
data: [220, 182, 191, 234, 290, 330, 310]
},
{
name: 'Video Ads',
type: 'line',
stack: 'Total',
data: [150, 232, 201, 154, 190, 330, 410]
},
{
name: 'Direct',
type: 'line',
stack: 'Total',
data: [320, 332, 301, 334, 390, 330, 320]
},
{
name: 'Search Engine',
type: 'line',
stack: 'Total',
data: [820, 932, 901, 934, 1290, 1330, 1320]
}
]
};
option && myChart.setOption(option);

Related

ECharts unkown series undefined

I am trying to use echarts bar https://echarts.apache.org/examples/en/editor.html?c=bar-label-rotation&lang=ts for displaying data . The problem I have is when trying to add four different bars to a chart I get error: [ECharts] Unkown series undefined. It works fine when there is only one bar. Here is my code:
this.chartOptions = {
grid: {
top: 20,
bottom: 90,
right: 5,
left: 60
},
legend: {
data: [
'Positive Capacity'
'Negative Capacity'
'Positive Energy'
'Negative Energy'
]
},
tooltip: {
trigger: 'axis',
formatter: (val) => `
<div>${format.formatTime('dd.MM.yyyy hh:mm', val[0].data[0])}</div>
<div>${val[0].marker}<span style="float:right"> ${val[0].data[1]} kW</span></div>
`
},
xAxis: {
type: 'time',
name: this.chartTranslations.xAxis,
nameLocation: 'middle',
nameGap: 80,
axisLabel: {
rotate: 45,
formatter: (val) => format.formatTime('dd.MM.yy hh:mm', val)
}
},
yAxis: {
type: 'value',
name: this.chartTranslations.yAxis,
nameLocation: 'middle',
nameGap: 50,
scale: true,
boundaryGap: ['2%', '2%'],
axisLabel : {
formatter: (val) => this.isMegaWatts ? (val/1000 + ' MW') : (val + ' kW')
},
},
series: [
{
name: 'Positive Capacity'
type: 'bar',
barGap: 10,
emphasis: {
focus: 'series'
},
itemStyle: {
color: new graphic.LinearGradient(0, 0, 0, 2.5, [
{
offset: 0,
color: 'rgba(45, 159, 195, 1)'
},
{
offset: 1,
color: 'rgba(255, 255, 255, 0)'
}
])
},
data: this.positiveCapacity
},
{
name: 'Negative Capacity',
type: 'bar',
barGap: 10,
emphasis: {
focus: 'series'
},
itemStyle: {
color: new graphic.LinearGradient(5, 5, 0, 2.5, [
{
offset: 0,
color: 'rgba(45, 159, 195, 1)'
},
{
offset: 1,
color: 'rgba(255, 255, 255, 0)'
}
])
},
data: this.negativeCapacity
},
{
name: 'Positive Energy',
type: 'bar',
barGap: 10,
emphasis: {
focus: 'series'
},
itemStyle: {
color: new graphic.LinearGradient(10, 10, 0, 2.5, [
{
offset: 0,
color: 'rgba(45, 159, 195, 1)'
},
{
offset: 1,
color: 'rgba(255, 255, 255, 0)'
}
])
},
data: this.positiveEnergy
},
{
name: 'Positive Capacity',
type: 'bar',
barGap: 10,
emphasis: {
focus: 'series'
},
itemStyle: {
color: new graphic.LinearGradient(20, 20, 0, 2.5, [
{
offset: 0,
color: 'rgba(45, 159, 195, 1)'
},
{
offset: 1,
color: 'rgba(255, 255, 255, 0)'
}
])
},
data: this.negativeEnergy
}
]
};
Then later setting content with: Echarts.setOption(this.chartOptions);
Thanks for any help or insight.

Echarts datazoom with grid of 4 charts

I have an eChart grid layout with 4 stacked bar charts and cannot figure out how to assign datazoom (nor have I found any examples of this online).
When I place the datazoom before the series, I DO get a zoom controller but only on one of the charts...
dataZoom: [{type: 'inside', start: 50, end: 100},
{start: 50, end: 100 }
}],
series: [{type: 'scatter'...
I won't post code for now (it's large) in hopes that someone can just tell me where to put the datazoom node.
I have no idea why you charts not working. Without example and with complex data you need to call fortune-teller only. In general datazoom can be easily attached to series.
var myChart = echarts.init(document.getElementById('main'));
var option = {
xAxis: [{
type: 'category',
gridIndex: 0
},
{
type: 'category',
gridIndex: 1
}
],
yAxis: [{
gridIndex: 0
},
{
gridIndex: 1
}
],
dataset: {
source: [
['product', '2012', '2013', '2014', '2015', '2016', '2017'],
['Matcha Latte', 41.1, 30.4, 65.1, 53.3, 83.8, 98.7],
['Milk Tea', 86.5, 92.1, 85.7, 83.1, 73.4, 55.1],
['Cheese Cocoa', 24.1, 67.2, 79.5, 86.4, 65.2, 82.5],
['Walnut Brownie', 55.2, 67.1, 69.2, 72.4, 53.9, 39.1]
]
},
grid: [{
bottom: '55%'
},
{
top: '55%'
}
],
series: [{
type: 'bar',
xAxisIndex: 1,
yAxisIndex: 1,
encode: {
x: 'product',
y: '2012'
}
}, {
type: 'bar',
xAxisIndex: 1,
yAxisIndex: 1,
encode: {
x: 'product',
y: '2013'
}
}, {
type: 'bar',
stack: 'st1',
encode: {
x: 'product',
y: '2014'
}
}, {
type: 'bar',
stack: 'st1',
encode: {
x: 'product',
y: '2015'
}
}],
dataZoom: [{
type: 'slider',
show: true,
xAxisIndex: [0, 1],
start: 1,
end: 70
},
{
type: 'inside',
xAxisIndex: [0, 1],
start: 1,
end: 35
},
],
};
myChart.setOption(option);
<div id="main" style="width: 600px;height:400px;"></div>
<script src="https://cdn.jsdelivr.net/npm/echarts#4.9.0/dist/echarts.min.js"></script>

React Native state is not getting updated

I want to update state on button click
this.state = {
legend: {
enabled: true,
textSize: 14,
form: 'CIRCLE',
horizontalAlignment: "RIGHT",
verticalAlignment: "CENTER",
orientation: "VERTICAL",
wordWrapEnabled: true
},
data: {
dataSets: [{
values: [{value: 45, label: 'Sandwiches'},
{value: 21, label: 'Salads'},
{value: 15, label: 'Soup'},
{value: 9, label: 'Beverages'},
{value: 15, label: 'Desserts'}],
label: 'Pie dataset',
}],
},
highlights: [{x:2}],
description: {
text: 'This is Pie chart description',
textSize: 14,
textColor: processColor('darkgray'),
}
};
I want to update values array of state by using following code but
it didn't work
const myvalues=this.state.data.dataSets[0].values.map(l => Object.assign({}, l));
myvalues[1].label = 'NEw sandwich';
this.setState({values: myvalues}, () => {
console.log(this.state.data.dataSets[0].values[1].label + " it worksss");
});
I am stuck in this
Check this
const myvalues = [] /*your new array*/
this.setState((state) =>
{
data: {
...state.data,
values: myvalues
}
});

Reduce gap between bars in Echart

Is there a way to reduce gap between BARS in a bar chart made using Echarts. I tried the option barCategoryGap as mentioned in the docs but it had no effect.
option = {
xAxis: {
type: 'category',
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
},
yAxis: {
type: 'value'
},
series: [{
data: [120, 200, 150, 80, 70, 110, 130],
type: 'bar',
barWidth: 50,
barCategoryGap: '10%'
}]
};
Any idea what is wrong here?

Echarts how to highlight area between 2 line charts

I want to develop an echart that has the area between 2 linecharts highlighted in a color. To achieve this, I made use of stacked area chart. I set the color of the upper area as the highlight color and color of lower area as white so as to achieve my result. However, the color of bigger area is merging with the lower area and producing a diff color. How can I set the colors of 2 areas to not interfere? Is there a way to give z-index to the areas for this?
Here is my code:
option = {
title: {
text: '堆叠区域图'
},
tooltip : {
trigger: 'axis',
axisPointer: {
type: 'cross',
}
},
legend: {
data:['邮件营销','联盟广告','视频广告','直接访问','搜索引擎']
},
toolbox: {
feature: {
saveAsImage: {}
}
},
grid: {
left: '3%',
right: '4%',
bottom: '3%',
containLabel: true
},
xAxis : [
{
type : 'category',
boundaryGap : false,
data : ['周一','周二','周三','周四','周五','周六','周日']
}
],
yAxis : [
{
type : 'value'
}
],
series : [
{
name:'联盟广告',
type:'line',
smooth: true,
areaStyle: {color: 'red'},
data:[170, 182, 161, 184, 160, 180, 165]
},
{
name:'邮件营销',
type:'line',
smooth: true,
areaStyle: {color: 'white'},
data:[120, 132, 111, 134, 110, 130, 115]
}
]
};
What I have achieved:
You need to increase the opacity of the below chart:
option = {
xAxis: {
type: 'category',
boundaryGap: false,
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
},
yAxis: {
type: 'value'
},
series: [
{
z: -1, // optional, makes the yAxis' splitLines appear on top
data: [170, 182, 161, 184, 160, 180, 165],
smooth: true,
type: 'line',
areaStyle: {}
},
{
z: -1, // optional, makes the yAxis' splitLines appear on top
data: [120, 132, 111, 134, 110, 130, 115],
smooth: true,
type: 'line',
areaStyle: {
color: 'rgb(243, 243, 243)', // color of the background
opacity: 1, // <--- solution
},
}
]
};
The above answer only works if the series do not cross the X axis. Here is the configuration that works if your data is both above and below 0 for both upper and lower boundaries:
data = [{
"date": "2012-08-28",
"l": -2.6017329022,
"u": 0.2949717757
},
{
"date": "2012-08-29",
"l": 0.1166963635,
"u": 0.4324086347
},
{
"date": "2012-08-30",
"l": -0.8712221305,
"u": 0.0956413566
},
{
"date": "2012-08-31",
"l": -0.6541832008,
"u": 0.0717120241
},
{
"date": "2012-09-01",
"l": -1.5222677907,
"u": -0.2594188803
},
{
"date": "2012-09-02",
"l": -1.4434280535,
"u": 0.0419213465
},
{
"date": "2012-09-03",
"l": -0.3543957712,
"u": 0.0623761171
}];
myChart.setOption(option = {
xAxis: {
type: 'category',
data: data.map(function (item) {
return item.date;
})
},
yAxis: {
},
series: [
{
z: -1,
name: 'U',
type: 'line',
data: data.map(function (item) {
return item.u;
}),
lineStyle: {
opacity: 0
},
areaStyle: {
color: '#ccc',
origin: "start"
},
symbol: 'none'
},
{
name: 'L',
type: 'line',
data: data.map(function (item) {
return item.l;
}),
lineStyle: {
opacity: 0
},
z: -1,
areaStyle: {
color: "white",
origin: "start",
// opacity: 1
},
symbol: 'none'
}]
});
Create a third series with the difference between the minimum and maximum values. This data series is used only to be able to color the area between minimum and maximum values.
The stackStrategy option works from version v5.3.3
let max = [10, 22, 28, 20, 23];
let min = [8, 15, 23, 18, 19];
let dif = max.map((v, i) => min[i] - v); // [-2, -7, -5, -2, -4]
option = {
xAxis: {
data: ['A', 'B', 'C', 'D', 'E']
},
yAxis: {},
tooltip: {
trigger: 'axis',
},
series: [
{
data: max,
type: 'line',
stack: 'x', // stack name
},
{
data: dif,
type: 'line',
stack: 'x', // stack name
stackStrategy: 'positive', // strategy
lineStyle: {
opacity: 0 // hide line
},
symbol: 'none', // hide symbol
areaStyle: {
color: '#ccc'
},
tooltip: {
show: false // hide value on tooltip
}
},
{
data: min,
type: 'line',
},
]
};